Even as a recluse, that doesn't just throw away the idea of good hygiene.

Indeed. The rumours about his mental state were just that I'd say. "Is that what they're saying about me?"

Whether or not people buy the reasons as to why Bruce became a recluse, I just love that side of the Batman character in general. How deep he broods and how hard he takes things. In TDKR he was depressed but hardly "peeing into mason jars".